DE102019121207A1 - Centrifugal pendulum with a rotation axis for a drive train - Google Patents

Abstract

The invention relates to a centrifugal pendulum (1) with a rotation axis (2) for a drive train (3), having the following components: - at least one pendulum mass (4) with a plurality of separate receiving openings (5, 6) each with a pendulum roller track (7, 8); - two carrier disks (9, 10) with a plurality of carrier roller tracks (11, 12), one of the pendulum roller tracks (7, 8) having a track pairing (15, 15) with corresponding one of the carrier roller tracks (11, 12, 13, 14). 16); - a plurality of pendulum rollers (17, 18) which are each assigned to one of the track pairings (15, 16), in which: - the respective pendulum roller (17, 18) has a pendulum roller diameter (20) and two axial securing shoulders (22 23) have a shoulder outer contour (24) with a larger shoulder diameter (25); and - the respective receiving opening (5,6) has an assembly opening (26) through which at least one of the axial securing shoulders (22,23) can be passed axially. The centrifugal pendulum (1) is primarily characterized in that the assembly opening (26) has a receiving contour (27) corresponding to the outer contour (24) of the axial securing shoulder (22, 23) and / or of a separate securing element (28) based on the The roller axis (19) of the pendulum roller (17,18) is reduced in size radially. With the centrifugal pendulum proposed here, simple assembly can be achieved with a compact design based on the desired specific weight of the pendulum mass.

Description

• - zumindest eine Pendelmasse mit einer Mehrzahl separater Aufnahmeöffnungen mit jeweils einer Pendelrollenbahn;
• - zwei Trägerscheiben mit einer Mehrzahl von Trägerrollenbahnen, wobei eine der Pendelrollenbahnen mit jeweils korrespondierenden der Trägerrollenbahnen eine Bahnpaarung bildet;
• - eine Mehrzahl von Pendelrollen, welche jeweils einer der Bahnpaarungen zugeordnet sind, bei welcher:
• - die jeweilige Pendelrolle einen Pendelrollendurchmesser und zwei Axialsicherungsabsätze mit einer Absatzaußenkontur mit einem größeren Absatzdurchmesser aufweisen; und
• - die jeweilige Aufnahmeöffnung eine Montageöffnung aufweist, durch welche zumindest einer der Axialsicherungsabsätze axial hindurchführbar ist. Das Fliehkraftpendel ist vor allem dadurch gekennzeichnet, dass die Montageöffnung eine zu der Absatzaußenkontur des Axialsicherungsabsatzes korrespondierende Aufnahmekontur aufweist und/oder von einem separaten Sicherungselement bezogen auf die Rollenachse der Pendelrolle radial verkleinert ist. Die Erfindung betrifft weiterhin eine Kupplungsscheibe mit einem solchen Fliehkraftpendel für eine Reibkupplung, sowie eine Reibkupplung mit einer solchen Kupplungsscheibe für einen Antriebsstrang, sowie einen Antriebsstrang mit einer solchen Reibkupplung, sowie ein Kraftfahrzeug mit einem solchen Antriebsstrang.

The invention relates to a centrifugal pendulum with a rotation axis for a drive train, having the following components:

• - At least one pendulum mass with a plurality of separate receiving openings, each with a pendulum roller track;
• - Two carrier disks with a plurality of carrier roller tracks, one of the pendulum roller tracks forming a track pairing with corresponding one of the carrier roller tracks;
• - a plurality of pendulum rollers, which are each assigned to one of the track pairings, in which:
• - The respective pendulum roller have a pendulum roller diameter and two axial securing shoulders with a shoulder outer contour with a larger shoulder diameter; and
• - The respective receiving opening has an assembly opening through which at least one of the axial securing shoulders can be axially passed. The centrifugal pendulum is primarily characterized in that the assembly opening has a receiving contour corresponding to the outer contour of the shoulder of the axial securing shoulder and / or is radially reduced in size by a separate securing element in relation to the roller axis of the pendulum roller. The invention further relates to a clutch disc with such a centrifugal pendulum for a friction clutch, and a friction clutch with such a clutch disc for a drive train, and a drive train with such a friction clutch, and a motor vehicle with such a drive train.

Centrifugal pendulums are for example from the DE 10 2017 104 968 A1 known. These are set up to eliminate an excitation frequency, for example an internal combustion engine, of a predetermined order independently of the rotational speed. For this purpose, at least one pendulum mass is provided, which oscillates with the shaft underlying the undesired oscillations and thus experiences a speed-dependent prestressing force (centrifugal force) radially outward in response to the centripetal force. For the defined oscillation of the pendulum mass, it is movable in a defined manner around a rest position by means of a plurality of pendulum roller conveyors, for example two pendulum roller conveyors, in the pendulum mass and corresponding carrier roller conveyors in at least one carrier disk by means of pendulum rollers, for example one pendulum roller per pendulum roller conveyor. For some applications it is advantageous if the pendulum mass is held between a pair of carrier disks. It is advantageous here if the pendulum mass is axially spaced apart in a defined manner by means of an axial securing shoulder between the pendulum mass and the respective carrier disk or is secured against axial collision with the carrier disk. For this purpose, the respective axial securing shoulder must have an outer shoulder contour with a shoulder diameter, the shoulder diameter being larger than the pendulum roller diameter in the axial overlap section with the pendulum mass. A possible embodiment of such a pendulum roller is for example in DE 10 2015 216 742 A1 shown. In some applications it is advantageous (for example can be produced more cost-effectively and / or a higher strength and / or lower tolerance) if the spherical rollers are formed in one piece. In some applications it is also advantageous (for example for increased security against loss or bursting) if the pendulum roller tracks are formed in a receiving opening. Then this shoulder diameter must be able to be passed axially through the receiving opening.

This is for example in the said DE 10 2015 216 742 A1 solved in that a large common receiving opening is formed for two pendulum roller tracks, a mounting opening being provided between the pendulum roller tracks. In the DE 10 2016 200 129 A1 a mounting opening is formed for each pendulum roller conveyor in that the receiving opening is designed larger than necessary for operation. The fact that the pendulum mass is secured radially in the receiving opening is ensured by means of a radial prestress. The disadvantage of the embodiments mentioned is that the receiving openings are larger than necessary and thus the specific weight of the pendulum mass is lower. The choice of possible materials with regard to the desired specific weight, i.e. an increased specific density, of the pendulum mass is limited with regard to the price pressure (for example in the automotive sector) and the required strength of the pendulum mass (burst resistance). The radial dimension must therefore be increased in order to compensate for the loss of material as a result of the assembly opening in the receiving opening. But the radial dimensions are already exhausted in many applications, or the highest possible mass in the given installation space is aimed for for high efficiency of the centrifugal pendulum. Even a few grams gain in the specific weight of the pendulum mass thus result in a competitive advantage.

Proceeding from this, the present invention is based on the object of at least partially overcoming the disadvantages known from the prior art. The features according to the invention emerge from the independent claims, for which advantageous configurations are shown in the dependent claims. The characteristics of the claims can be combined in any technically meaningful manner, whereby the explanations from the following description as well as features from the figures, which include supplementary embodiments of the invention, can also be used.

• - zumindest eine Pendelmasse mit einer Mehrzahl separater Aufnahmeöffnungen mit jeweils einer Pendelrollenbahn;
• - eine vordere Trägerscheibe mit einer Mehrzahl von zu jeweils einer der Pendelrollenbahnen korrespondierenden vorderen Trägerrollenbahnen;
• - eine hintere Trägerscheibe mit einer Mehrzahl von zu jeweils einer der

The invention relates to a centrifugal pendulum with a rotation axis for a drive train, having at least the following components:

• - At least one pendulum mass with a plurality of separate receiving openings, each with a pendulum roller track;
• a front carrier disk with a plurality of front carrier roller tracks corresponding to one of the oscillating roller tracks;
• - A rear carrier disk with a plurality of each one of the

• - eine Mehrzahl von Pendelrollen mit jeweils einer Rollenachse, welche jeweils einer der Bahnpaarungen zugeordnet ist, wobei die zumindest eine Pendelmasse an den Trägerscheiben mittels der Pendelrollen gelagert ist, wobei in zumindest einer der Bahnpaarungen:
  • - die jeweilige Pendelrolle einen Pendelrollendurchmesser in einem Überlappungsabschnitt in axialer Überlappung mit der Pendelmasse und einen vorderen Axialsicherungsabsatz und einen hinteren Axialsicherungsabsatz aufweist, wobei die Axialsicherungsabsätze jeweils zum axialen Beabstanden der Pendelmasse zu einer korrespondierenden Trägerscheibe eingerichtet sind, wobei die Axialsicherungsabsätze jeweils eine Absatzaußenkontur mit einem Absatzdurchmesser aufweisen, wobei der Absatzdurchmesser größer als der Pendelrollendurchmesser ist; und
  • - die jeweilige Aufnahmeöffnung eine Montageöffnung aufweist, wobei einzig durch die Montageöffnung zumindest einer der Axialsicherungsabsätze axial hindurchführbar ist.

Pendulum roller tracks corresponding rear carrier roller tracks, wherein the at least one pendulum mass is arranged axially between the two carrier disks and one of the pendulum roller tracks forms a track pairing with the respective corresponding front carrier roller track and rear carrier roller track; and

• - A plurality of pendulum rollers, each with a roller axis, each of which is assigned to one of the track pairings, the at least one pendulum mass being mounted on the carrier disks by means of the pendulum rollers, in at least one of the track pairings:
  • - The respective pendulum roller has a pendulum roller diameter in an overlap section in axial overlap with the pendulum mass and a front axial locking shoulder and a rear axial locking shoulder, the axial locking shoulders each being set up for axially spacing the pendulum mass from a corresponding carrier disk, the axial locking shoulder each having a shoulder outer contour have, wherein the shoulder diameter is larger than the pendulum roller diameter; and
  • the respective receiving opening has an assembly opening, at least one of the axial securing shoulders being able to be axially passed through the assembly opening alone.

The centrifugal pendulum is primarily characterized in that the assembly opening has a receiving contour that corresponds to the outer contour of the shoulder of the axial securing shoulder.

In the following, reference is made to the named axis of rotation if the axial direction, radial direction or the direction of rotation and corresponding terms are used without explicitly otherwise indicated. Unless explicitly stated otherwise, ordinal numbers used in the preceding and following description are only used for clear differentiation and do not reflect any order or ranking of the components identified. An ordinal number greater than one does not necessarily mean that another such component must be present.

The centrifugal pendulum described here is set up for conventional use and for this purpose has at least one pendulum mass, preferably two, three or four pendulum masses, which are arranged rotatably about an axis of rotation so that they are subject to the centripetal force. The centrifugal pendulum is set up in a drive train with a drive machine and at least one consumer, for example the propulsion wheels of a motor vehicle, to eliminate superimposed vibrations of a predetermined order. For this purpose, the centrifugal pendulum is often arranged as close as possible to the vibration source, usually the drive machine, so that as many components of the drive train as possible are isolated from the (redeemable) vibrations. The axis of rotation of the centrifugal pendulum is usually congruent with the axis of rotation of the machine shaft of a drive machine connected in an application, for example an internal combustion engine. In one application, the centrifugal pendulum is integrated into a clutch disc, that is to say the centrifugal pendulum forms a pre-assemblable unit with a friction carrier, for example provided with friction linings. In one application, the centrifugal pendulum forms a structural unit with a vibration damper. In one application, a friction clutch has a plurality of centrifugal pendulums and / or a centrifugal pendulum comprises a plurality of pendulum masses, at least one of the pendulum masses, preferably a pair of pendulum masses arranged diametrically to one another, being set up for a different oscillation order than the at least one other pendulum mass, preferably two pendulum masses also arranged as a pair. The at least one pendulum mass proposed here is one of a plurality of pendulum masses or is described as representative of all pendulum masses of the centrifugal pendulum.

The pendulum mass has a plurality of separate receiving openings, for example two receiving openings, which are not formed contiguously. It is therefore not possible to move a pendulum roller inserted into one (separate) receiving opening in the circumferential direction and thus transfer it into another (separate) receiving opening. Nevertheless is in one Embodiment a pendulum roller can be introduced (axially) into several or each of the receiving openings. The receiving opening is provided to form a pendulum roller conveyor for at least one, preferably a single, inserted pendulum roller. The pendulum roller rolls on the respective pendulum roller track around its roller axis relative to the pendulum mass when the centrifugal pendulum is excited to vibrate. The roller axis is aligned parallel to the axis of rotation. For this purpose, the pendulum roller has a pendulum roller diameter in an overlap section in axial overlap with the pendulum mass. This overlapping section is therefore effective in bearing for the respective pendulum mass.

A front carrier disk and a rear carrier disk are provided to hold the at least one pendulum mass. The carrier disks each have carrier roller tracks, of which a carrier roller track of the front carrier disc and a carrier roller track of the rear carrier disc correspond to a pendulum roller track (the pendulum mass). It should be pointed out here that the assignment as a front or rear component is used here to make it easy to distinguish between them and is based on the axially paired arrangement of the two carrier disks on both sides of the pendulum masses. In each case one of the pendulum roller tracks forms a track pairing with the corresponding front and rear carrier roller tracks. The at least one pendulum roller in a track pairing rolls around its roller axis on the two carrier roller conveyors as in the case of the pendulum roller conveyor. For this purpose, the pendulum roller has an outer section with a carrier roller diameter at the rear and front, which is arranged in axial overlap with the respective carrier roller conveyor. The carrier roller diameter is the same or different from the pendulum roller diameter of the overlap section (in axial overlap with the pendulum mass), preferably smaller for a translation that shortens the oscillation amplitude (especially in the circumferential direction) of the pendulum mass. The path pairing enables or enforces the pendulum movement of the pendulum mass relative to the carrier disks (predetermined for a desired damping property) in the event of a vibration excitation and is, for example, conventionally set up, for example enables or enforces a (relative) trapezoidal movement of the pendulum mass. Without vibration excitation or with an applied vibration that does not correspond to the predetermined vibration order, the pendulum mass remains in its rest position in the entire operating range (i.e. at a design-specific minimum operating speed), for example in the center of the roller conveyors of the track pairing.

The respective pendulum roller has a front and a rear axial securing shoulder, which is arranged axially between the overlapping section and the front or rear outer section, for the function of axial securing or predetermined spacing of the respective pendulum mass from the carrier disks already explained above. The axial securing shoulders each have a shoulder outer contour with a shoulder diameter, the shoulder diameter being greater than the pendulum roller diameter, and preferably greater than the respective carrier roller diameter. Owing to the need for round sections in overlap with the pendulum mass and the carrier disks, the outer contour of the shoulder is often also round, for example circular, for manufacturing reasons. This is not a technical requirement. The corresponding shoulder diameter is then defined as the minimum diameter in relation to the roller axis. The outer contour of the shoulder is in any case set up in such a way that the mentioned function of the axial spacing is guaranteed in every relative position of the pendulum mass to the pendulum roller conveyor and the respective carrier roller conveyor during operation.

The respective receiving opening is to be designed as small as possible, as described above. Nevertheless, it is necessary (in the case of a one-piece or preassembled pendulum roller) that the receiving opening has an assembly opening through which one of the two axial locking shoulders can be axially passed in order to assemble the corresponding pendulum roller. Only in this way can the pendulum roller be positioned in the respective receiving opening with the correct axial overlap with the pendulum mass.

It is now proposed here that the assembly opening has a receiving contour that corresponds to the outer contour of the shoulder of the axial securing shoulder. The assembly opening is thus designed to be minimal. A receiving contour corresponds to an axial securing shoulder if the outer shoulder contour of the axial securing shoulder can be axially passed through the assembly opening, preferably with play, in at least one (twisted) position about the roller axis. The receiving contour does not form an opening surrounding the shoulder outer contour, but only a corresponding contour section to the shoulder outer contour, that is to say an arc section in the case of a circular shoulder outer contour. The receiving contour is thus characterized in that, together with the rest of the receiving opening (in the relevant area), it forms the minimum opening necessary for the axial insertion of the respective oscillating roller (s). The minimum necessary opening is to be considered from the point of view of simple and / or inexpensive assembly and suitable manufacturing tolerances. Furthermore, for example, at a transition from the receiving contour to the rest of the contour of the receiving opening, production-related or for a suitable stress profile in the Pendulum mass, for example, provided rounded corners. The receiving contour is in any case a bulge of the receiving opening with minimal dimensions.

• - zumindest eine Pendelmasse mit einer Mehrzahl separater Aufnahmeöffnungen mit jeweils einer Pendelrollenbahn;
• - eine vordere Trägerscheibe mit einer Mehrzahl von zu jeweils einer der Pendelrollenbahnen korrespondierenden vorderen Trägerrollenbahnen;
• - eine hintere Trägerscheibe mit einer Mehrzahl von zu jeweils einer der Pendelrollenbahnen korrespondierenden hinteren Trägerrollenbahnen, wobei die zumindest eine Pendelmasse axial zwischen den beiden Trägerscheiben angeordnet ist und jeweils eine der Pendelrollenbahnen mit der jeweils korrespondierenden vorderen Trägerrollenbahn und hinteren Trägerrollenbahn eine Bahnpaarung bildet; und
• - eine Mehrzahl von Pendelrollen mit jeweils einer Rollenachse, welche jeweils einer der Bahnpaarungen zugeordnet ist, wobei die zumindest eine Pendelmasse an den Trägerscheiben mittels der Pendelrollen gelagert ist, wobei in zumindest einer der Bahnpaarungen:
  • - die jeweilige Pendelrolle einen Pendelrollendurchmesser in einem Überlappungsabschnitt in axialer Überlappung mit der Pendelmasse und einen vorderen Axialsicherungsabsatz und einen hinteren Axialsicherungsabsatz aufweist, wobei die Axialsicherungsabsätze jeweils zum axialen Beabstanden der Pendelmasse zu einer korrespondierenden Trägerscheibe eingerichtet sind, wobei die Axialsicherungsabsätze jeweils eine Absatzaußenkontur mit einem Absatzdurchmesser aufweisen, wobei der Absatzdurchmesser größer als der Pendelrollendurchmesser ist; und
  • - die jeweilige Aufnahmeöffnung eine Montageöffnung aufweist, wobei einzig durch die Montageöffnung zumindest einer der Axialsicherungsabsätze axial hindurchführbar ist.

According to a further aspect, a centrifugal pendulum with a rotation axis for a drive train is proposed, having at least the following components:

• - At least one pendulum mass with a plurality of separate receiving openings, each with a pendulum roller track;
• a front carrier disk with a plurality of front carrier roller tracks corresponding to one of the oscillating roller tracks;
• - A rear carrier disk with a plurality of rear carrier roller tracks corresponding to one of the pendulum roller tracks, the at least one pendulum mass being arranged axially between the two carrier disks and each one of the pendulum roller tracks forming a track pairing with the respectively corresponding front carrier roller track and rear carrier roller track; and
• - A plurality of pendulum rollers, each with a roller axis, each of which is assigned to one of the track pairings, the at least one pendulum mass being mounted on the carrier disks by means of the pendulum rollers, in at least one of the track pairings:
  • - The respective pendulum roller has a pendulum roller diameter in an overlap section in axial overlap with the pendulum mass and a front axial locking shoulder and a rear axial locking shoulder, the axial locking shoulders each being set up for axially spacing the pendulum mass from a corresponding carrier disk, the axial locking shoulder each having a shoulder outer contour have, wherein the shoulder diameter is larger than the pendulum roller diameter; and
  • the respective receiving opening has an assembly opening, at least one of the axial securing shoulders being able to be axially passed through the assembly opening alone.

The centrifugal pendulum is primarily characterized in that the assembly opening is radially reduced in size by a separate securing element in relation to the roller axis of the pendulum roller in such a way that the pendulum roller is axially secured in the receiving opening.

Reference is made here to the preceding description as far as the function of the centrifugal pendulum and the geometric and functional arrangement of the components of the centrifugal pendulum are concerned. In a departure from the above description, the assembly opening in the respective receiving opening is not necessarily as small as possible, that is to say, for example, larger than the receiving contour described above.

It is proposed here that the assembly opening is reduced in size by a separate securing element in such a way that the at least one (previously) mounted pendulum roller can no longer be dismantled or is secured against loss. The securing element is formed separately in such a way that it can be subsequently connected to the pendulum mass (at least in a loss-proof manner), namely after the at least one pendulum mass has been positioned in the relevant receiving opening. Only when the separate securing element is removed can the pendulum roller (non-destructively) be dismantled again. The securing element preferably has a high specific density, so that the specific weight of the pendulum mass is increased as a result.

It is also proposed in an advantageous embodiment of the centrifugal pendulum that the securing element preferably completely fills the receiving contour.

It is proposed here that the assembly opening is designed with a receiving contour in accordance with the preceding description and at the same time the assembly opening is reduced in size by the separate securing element. A large specific weight can thus be achieved. The receiving contour is particularly advantageously completely filled by the securing element, so that the relevant receiving opening is just large enough, that is to say the specific weight of the pendulum mass is reduced to such an extent that trouble-free operation of the pendulum mass is guaranteed.

It is also proposed in an advantageous embodiment of the centrifugal pendulum that the pendulum mass comprises at least one friction element for frictional engagement with one of the carrier disks, the friction element preferably being attached to the pendulum mass by means of the securing element according to an embodiment according to the description above.

It is proposed here that at least one friction element, preferably at least one friction element in each case, is provided on both sides of the pendulum mass, which friction element forms a frictional connection with the associated carrier disk. This achieves a hysteresis property when the pendulum mass is excited, which, comparable to a slip clutch, prevents the pendulum mass from moving when vibrations are excited with a force amplitude below a predetermined limit value ( Friction adhesion) and after exceeding the predetermined limit value allows a movement of the pendulum mass (with opposing frictional force). For many applications, the friction element is only indirectly in frictional contact with the respective carrier disk, for example via a plate spring and / or wave spring and / or at least one intermediate disk. The friction element is formed, for example, from a material comparable to a friction lining of a friction clutch or a deceleration brake. In one embodiment, the respective friction partner, for example an intermediate disk, of the friction element is alternatively or additionally formed from such a material or coated therewith.

In an advantageous embodiment, the at least one friction element is attached to the pendulum mass by means of the securing element as described above. Alternatively, the securing element is held in position by the respective friction element in the receiving contour, the friction element in question being (only) attached to a different location on the pendulum mass. In one embodiment, the friction element forms in one piece a rubber-elastic stop for the pendulum mass or is connected to such a stop (element). The material of the stop element is identical to the friction element or different. In one embodiment, the friction element is connected to the pendulum mass by means of the at least one stop element or, conversely, holds the stop element in position relative to the pendulum mass. In a preferred embodiment, the friction element is connected to the pendulum mass only in the receiving contour and at the respective stop (element), for example at three points with two stop elements. In one embodiment, two friction elements on both sides of the pendulum mass are connected to one another (at least captively) via the receiving contour and / or the areas of the stops or stop elements. In one embodiment, such two friction elements that can be connected to one another are of identical design.

It is also proposed in an advantageous embodiment of the centrifugal pendulum that the receiving openings with the assembly opening have a securing track radially opposite the respective pendulum roller conveyor, the securing track being spaced apart from the pendulum roller conveyor by a securing distance,
the safety distance outside the mounting opening is constant.

It is proposed here that a securing distance is formed from the receiving opening so that the pendulum mass is not only axially secured in sections of the receiving opening with this securing distance, but is also held in position radially as close as possible to the respective oscillating roller conveyor, for example under the influence of gravity outside of an operating state of the Centrifugal pendulum, for example zero speed with the engine switched off. Pretensioning means for holding the position are then not necessary. The safety distance is defined perpendicular to (the infinitesimal sections) of the pendulum roller conveyor and is (at least outside the assembly opening) in the running area of the roller axis of the pendulum mass. The safety distance is so small that there is just enough play between the pendulum mass (in the overlapping section) and the safety track in all operating states according to the design.

Preferably, the securing distance by means of the securing element according to an embodiment according to the description above is constant over the entire extent of the receiving opening in the circumferential direction, for example in the running area of the roller axis of the pendulum mass.

It is also proposed in an advantageous embodiment of the centrifugal pendulum that the assembly opening is arranged centrally in the circumferential direction relative to the pendulum roller conveyor.

In this embodiment, the rest position of the pendulum mass is preferably in the center of the respective pendulum roller conveyor. In the region of the rest position, the radial tendency of the pendulum mass to evade is lowest due to the highest radial component in the deflection force or deflection force, which is necessary for forcing the desired pendulum movement. With a central arrangement, the probability of loss (with or without a securing element) and / or an evasive force on the securing element that may be provided is therefore lowest. Because the mounting opening is always arranged (approximately) radially opposite the pendulum roller conveyor, a loss probability occurs only at a speed below a lower limit value according to the design (see previous description) of an operating speed. However, in an embodiment without a securing element, the mounting opening is relatively small and the pendulum mass is kept sufficiently secured by means of a friction force, for example with a friction element provided according to an embodiment as described above. If no friction element is provided either, the only angular position which has a sufficient probability of loss is that angular position in which the force of gravity, standing vertically on the pendulum roller conveyor, runs centrally through the mounting opening; in a preferred embodiment, the pendulum mass is then aligned horizontally. The pendulum mass can then axially overcome (one of) the axial locking shoulders. As soon as the If the centripetal force acts again, an imbalance in the centrifugal pendulum caused by this alone would cause a sufficient axial force to return the pendulum mass to its target axial position, i.e. between the two axial locking shoulders, and the functionality of the respective track pairing and pendulum roller is restored. In one embodiment, such a possibility of complete self-disassembly or self-relocation of the pendulum mass is excluded in that the assembly openings of the majority of the receiving openings (a single pendulum mass) are geometrically arranged in such a way that the pendulum rollers never simultaneously meet the condition of the orientation described above to meet gravity. Axial tilting of the pendulum mass is then necessary, which is geometrically prevented by the at least one correctly arranged pendulum roller and / or the assembly opening is too small for one of the axial securing shoulders to pass through in a tilted manner. Self-dismantling can only take place if at the same time the at least one (in two) other of the pendulum rollers of the plurality of receiving openings has a relative position to the respective pendulum roller track deviating from the target position (in the circumferential direction). However, because of the force of gravity that depresses the pendulum mass, this would aim for the highest point of the pendulum roller conveyor or the opposite safety track, which (highest point) is located outside the assembly opening when the assembly opening is just in the middle. In one embodiment, self-dismantling of one of the pendulum rollers is prevented by means of the at least one stop or stop element according to one embodiment as described above. Due to its sufficient rigidity, the stop prevents excessive penetration of one of the spherical rollers into the respective assembly opening.

A self-aligning roller cannot dismantle itself because it is secured axially by the carrier disks by means of the axial locking shoulders. No mounting opening or similar device on the carrier disk side is necessary there.

• - einen Reibträger zur reibschlüssigen Drehmomentübertragung;
• - einen Wellenanschluss zur Drehmomentübertragung, wobei der Reibträger und der Wellenanschluss drehmomentfest miteinander verbunden sind; und
• - ein Fliehkraftpendel nach einer Ausführungsform gemäß der obigen Beschreibung,

wobei bevorzugt die Kupplungsscheibe weiterhin einen Schwingungsdämpfer umfasst.According to a further aspect, a clutch disc is proposed for a friction clutch, having at least the following components:

• - A friction carrier for frictional torque transmission;
• - A shaft connection for torque transmission, wherein the friction carrier and the shaft connection are connected to one another in a torque-proof manner; and
• - a centrifugal pendulum according to an embodiment according to the description above,

wherein the clutch disk preferably further comprises a vibration damper.

The clutch disc proposed here is set up for conventional use, for example in a friction clutch. The clutch disk preferably has a conventional installation space requirement or, in comparison therewith, a smaller installation space requirement with the same function. The clutch disc is particularly preferred solely with regard to the centrifugal pendulum and any adjustments resulting therefrom, preferably without any necessary adjustments, unlike a conventional clutch disc.

The clutch disc has a friction carrier, for example for connecting one or more friction linings. The friction carrier is set up in a predetermined area, preferably radially on the outside, for example by means of at least one friction lining, for the frictional transmission of a torque. For example, the predetermined area for a frictional torque transmission between two friction plates, preferably an (axially movable) pressure plate and an (axially fixed) counter-plate, can be axially pressed.

Furthermore, a shaft connection is provided, for example for the torque-transmitting connection to a transmission input shaft and / or a drive shaft of an electric motor of a hybrid module. The shaft connection is designed, for example, as a shaft piece with an internal spline. The shaft connection and the friction carrier are (indirectly or directly) connected to one another in a torque-proof manner. In a preferred embodiment, a vibration damper is interposed between the friction carrier and the shaft connection, that is, connected in series. Thus, only a damped torque can be transmitted between the friction carrier and the shaft connection. Alternatively, the vibration damper is connected in parallel.

Here, a centrifugal pendulum is also provided according to an embodiment as described above. The centrifugal pendulum is arranged in such a way that a torque between the friction carrier and the shaft connection is modulated solely by means of the centrifugal pendulum, in which case the desired vibration excitations are eliminated to the required extent and can be transmitted. The centrifugal pendulum is connected upstream or downstream of the vibration damper in the torque flow.

The at least one pendulum mass of the centrifugal pendulum is to be arranged for most embodiments in each operating state radially within the predetermined area set up for the frictional torque transmission. Accordingly, the available radial installation space for the centrifugal pendulum is small. With an increased specific weight of the at least one pendulum mass, the centrifugal pendulum proposed here is particularly advantageous and the clutch disc proposed here is therefore particularly competitive.

• - zumindest ein axial verpressbares Reibpaket umfassend zumindest eine Reibplatte und zumindest eine Kupplungsscheibe nach einer Ausführungsform gemäß der obigen Beschreibung, über welches im verpressten Zustand ein Drehmoment übertragbar ist;
• - eine Eingangsseite zum Aufnehmen eines Drehmoments; und
• - eine Ausgangsseite zum Abgeben eines Drehmoments,

wobei die Eingangsseite einzig mittels des Reibpakets mit der Ausgangsseite drehmomentübertragend verbunden ist,
wobei bevorzugt die Ausgangsseite von dem Wellenanschluss der Kupplungsscheibe gebildet ist.According to a further aspect, a friction clutch for a drive train is proposed, having at least the following components:

• - At least one axially compressible friction package comprising at least one friction plate and at least one clutch disc according to an embodiment according to the above description, via which a torque can be transmitted in the pressed state;
• an input side for receiving a torque; and
• - an output side for delivering a torque,

The input side is connected to the output side in a torque-transmitting manner solely by means of the friction package,
wherein the output side is preferably formed by the shaft connection of the clutch disc.

The friction clutch is set up to releasably transfer torque in a drive train from its input side to the output side, and preferably vice versa. For this purpose, an axially compressible friction package is provided between the input side and the output side, connected in a torque-proof manner, which is composed of at least one friction plate and at least one clutch disc according to an embodiment as described above. In a preferred embodiment, a single clutch disc is provided between a first friction plate, an axially movable pressure plate, and a second friction plate, preferably an axially fixed counter-plate, and can be pressed between them for frictional torque transmission by means of a pressure force. As a result of the contact pressure, there is a frictional force via the (possibly a plurality of) flat friction pairings between the area of the clutch disc predetermined for frictional engagement and a (respective) corresponding counter-friction area of the at least one friction plate, which multiplied by the mean radius of the friction surface formed results in a transferable torque . Multiplied by the number of friction pairings, this gives roughly the transferable (maximum) total torque of the friction clutch. In the unpressed state of the friction pack, no torque or only a permissible low drag torque can be transmitted between the input side and the output side.

The input side is set up to absorb a torque, for example connected to a drive machine (indirectly or directly) in a torque-proof manner. The output side is set up to deliver a torque, for example connected to a transmission input shaft (indirectly or directly) in a torque-proof manner. The input side is preferably also set up to output a torque, for example for recuperation of deceleration energy in a motor vehicle, and the output side is correspondingly also set up to absorb a torque. It should be noted that the input side and the output side are preferably arranged according to the main torque curve, but this is not mandatory. In a preferred embodiment, the output side of the friction clutch is formed by the shaft connection of the clutch disc. In a preferred embodiment, the input side of the friction clutch is directly connected to the machine shaft, for example crankshaft, in a torque-proof manner, preferably by means of a flange connection.

With the friction clutch proposed here, a high level of running smoothness or low vibration loading of those components of a drive train downstream of the friction clutch as well as low noise emissions can be achieved, while at the same time the space required for the centrifugal pendulum is unchanged or reduced. Alternatively, the space required for the centrifugal pendulum can be reduced with the same, that is, conventional, repayment performance.

• - eine Antriebsmaschine mit einer Maschinenwelle;
• - zumindest einen Verbraucher; und
• - eine Reibkupplung nach einer Ausführungsform gemäß der obigen Beschreibung,

wobei die Maschinenwelle mittels der Reibkupplung lösbar mit dem zumindest einen Verbraucher drehmomentübertragend verbunden ist.According to a further aspect, a drive train is proposed having at least the following components:

• - a drive machine with a machine shaft;
• - at least one consumer; and
• - A friction clutch according to an embodiment according to the description above,

wherein the machine shaft is releasably connected to the at least one consumer in a torque-transmitting manner by means of the friction clutch.

The drive train proposed here comprises a friction clutch in an embodiment according to the above description, the friction clutch transmitting torque from the drive machine or its machine shaft to at least one consumer, For example, in a motor vehicle, the propulsion wheels are brought about by means of an externally applied pressure force on the friction package, that is to say releasably. This by no means excludes reverse torque transmission from the consumer to the machine shaft, in a motor vehicle, for example, to use the engine brake to decelerate the motor vehicle. The prime mover is, for example, an internal combustion engine. In one embodiment, the input side of the friction clutch is connected to the machine shaft in a torque-proof manner and the output side (at least indirectly, for example via a transmission) is connected to the at least one consumer in a torque-proof manner.

With the drive train proposed here, a high level of running smoothness or low vibration loading of those components of the drive train downstream of the friction clutch as well as low noise emissions can be achieved, while at the same time the space required for the centrifugal pendulum remains unchanged or reduced. Alternatively, the space required for the centrifugal pendulum can be reduced with the same, that is, conventional, repayment performance.

According to a further aspect, a motor vehicle is proposed, having at least one drive wheel for propelling the motor vehicle, which drive wheel can be driven by means of a drive train according to an embodiment according to the above description.

The installation space is particularly small in motor vehicles due to the increasing number of components and it is therefore particularly advantageous to use a drive train of small size. With the desired so-called downsizing of the prime mover with a simultaneous reduction in operating speeds, the intensity of the disruptive vibrations is increased, so that an effective elimination of such vibrations, which are clearly limited to predetermined orders due to the design of the prime mover, for example its number of cylinders.

This problem is exacerbated in the case of passenger cars in the small car class according to the European classification. The units used in a passenger car of the small car class are not significantly reduced in size compared to passenger cars of larger car classes. Nevertheless, the space available for small cars is much smaller. In the motor vehicle proposed here, an inexpensive and low-vibration drive train is used without changes to the required installation space, the design of the multi-plate clutch being less susceptible to the development of interfering noises.

Passenger cars are assigned to a vehicle class according to, for example, size, price, weight and performance, whereby this definition is subject to constant change according to the needs of the market. In the US market, vehicles in the subcompact car class are assigned to the subcompact car class according to the European classification, and in the British market they correspond to the supermini class or the city car class. Examples of the small car class are a Volkswagen up! or a Renault Twingo. Examples of the small car class are an Alfa Romeo MiTo, Volkswagen Polo, Ford Ka + or Renault Clio.

• 1: ein Fliehkraftpendel in teilgeschnittener Draufsicht;
• 2: ein Fliehkraftpendel in Explosionsdarstellung;
• 3: eine Pendelrolle in seitlicher Ansicht;
• 4: ein Fliehkraftpendel in seitlicher Schnittansicht;
• 5: ein Anschlagelement in einer Detailansicht;
• 6: eine Pendelmasse in Draufsicht;
• 7: ein Reibelement in räumlicher Darstellung;
• 8: eine Reibkupplung mit Kupplungsscheibe in Seitenansicht; und
• 9: ein Kraftfahrzeug mit einer Reibkupplung in einem Antriebsstrang.

The invention described above is explained in detail below against the relevant technical background with reference to the associated drawings, which show preferred embodiments. The invention is in no way restricted by the purely schematic drawings, it being noted that the drawings are not dimensionally accurate and are not suitable for defining size relationships. It is shown in

• 1 : a centrifugal pendulum in partially sectioned plan view;
• 2 : a centrifugal pendulum in an exploded view;
• 3 : a pendulum roller in a side view;
• 4th : a centrifugal pendulum in a side sectional view;
• 5 : a stop element in a detailed view;
• 6th : a pendulum mass in plan view;
• 7th : a friction element in a spatial representation;
• 8th : a friction clutch with clutch disc in side view; and
• 9 : a motor vehicle with a friction clutch in a drive train.

In 1 is a centrifugal pendulum 1 Shown in a partially sectioned plan view from the front, so that the front support disk in the lower area of the illustration 9 you can see. The centrifugal pendulum is in the upper area of the illustration 1 cut about axially in the middle, so that the rear carrier disk 10 is visible. The centrifugal pendulum 1 is around the axis of rotation 2 in the circumferential direction 33 (and / or vice versa) rotatable and, in this preferred embodiment, rotationally symmetrical with three, preferably equal, pendulum masses 4th executed, which are shown here in the rest position. The relative movement of the pendulum masses 4th to the carrier disks 9 , 10 is in the circumferential direction 33 limited, here optionally by means of stop bolts 61 . The one in the illustration upper pendulum mass 4th is shown in full section. Here you can see that this pendulum mass 4th (and also the other pendulum masses 4th ) by means of a first pendulum roller 17th (shown here on the left) and a second pendulum roller 18th (shown here on the right) on the carrier discs 9 , 10 is hung. The pendulum rollers 17th , 18th are through one of the two separate receiving openings 5 , 6th axially pushed through. Further details on this are provided with reference to the 2 and 4th to 6th explained. There is also a first stop element here 53 (left in the illustration) and a second stop element 54 (on the right in the illustration). The first stop element 53 is in a detailed view according to the location designation Z in 7th shown and explained below. With the second pendulum roller 18th a radial section BB is shown. The corresponding sectional view is in 4th shown.

In 2 is an exploded view of a centrifugal pendulum 1 , for example as in 1 shown, shown. At least for the functional context, the 1 and the associated description. On the far left in the illustration is the rear carrier disk 10 to see at which the stop bolt 61 and two of the three pendulum masses 4th mounted or pre-positioned. The upper pendulum mass 4th is between a rear friction element 30th and a front friction element 29 shown, the friction elements 29 , 30th relative to the rear support disk 10 are purely axially shifted and the (upper) pendulum mass 4th as well as the spherical rollers 17th , 18th are also shown radially exposed. The friction elements 29 , 30th are with the pendulum mass 4th connectable and for direct or indirect concern with that carrier disk 9 , 10 , which are each arranged immediately axially adjacent, in frictional contact. The axial preload force is here (optional) like a slip clutch from a plate spring 68 held in reserve, which between the front carrier disk 9 and the front friction element 29 is axially braced structurally. The (upper) pendulum mass 4th has a first receiving opening 5 and a second receiving opening 6th through which the first pendulum roller 17th or the second pendulum roller 18th is inserted through in the assembled state. ---- The pendulum rollers 17th , 18th are each in a receiving opening 5 , 6th recorded, whereby they are in the assembled state (cf. 4th ) on the respective roller conveyor 7th , 8th and the respective front carrier roller conveyor 11 , 12 and the respective rear carrier roller conveyor 13 , 14th rolling the pendulum mass 4th relative to the carrier disks 9 , 10 pivotable. The first shuttle roller conveyor 7th , the first front carrier roller conveyor 11 and the first rear carrier roller conveyor 13 together form a first path pairing 15th for the first pendulum roller 17th . The second roller conveyor 8th , the second front carrier roller conveyor 12 and the second rear carrier roller conveyor 14th together form a second pair of tracks 16 for the second pendulum roller 18th .

In 3 is the structure of the spherical rollers 17th , 18th shown. The axially approximately central overlap section can be seen 21st and the rear axial locking shoulder 23 and the front axial locking shoulder 22nd . In addition, the (here for example front) axial securing shoulder is 22nd with an outer contour of the paragraph 24 executed, the paragraph outer contour 24 through the mounting opening 26th can be passed through and here (optionally) is made circular.

In 4th is a sectional view BB of the centrifugal pendulum 1 according to 1 shown (compare there the marked cutting position). The cut runs radially and leads through the (upper) pendulum mass 4th with the second pendulum roller 18th and the second stop element 54 . It should be noted that here is the front carrier disk 9 left and the rear carrier disk 10 shown on the right. The geometry of the (second) pendulum roller 18th (The same applies preferably to the first pendulum roller 17th ) is here in the positioned state in the rest position of the pendulum mass 4th easy to recognize in their function. In the (second) track pairing 16 rolls the (second) pendulum roller 18th around their roll axis 19th with their front outer section 49 on the (second) front carrier roller conveyor 12 , with its rear outer section 50 on the (second) rear carrier roller conveyor 14th and with the (axially approximately central) overlap section 21st on the (second) shuttle roller conveyor 8th from when the pendulum mass 4th is accelerated radially outward. The (second) pendulum roller 18th has a front axial locking shoulder 22nd and rear axial locking shoulder 23 on, which is a paragraph outer contour 24 has, for example circular and concentric to the roller axis 19th . The outer contour of the paragraph 24 has a shoulder diameter 25th which is larger than the pendulum roller diameter 20th , which in the overlap portion 21st present. The shoulder diameter is preferred 25th also larger than the respective carrier roll diameter 51 , 52 . So that is the pendulum mass 4th axially safe from the carrier disks 9 , 10 spaced.

The sectional view also leads through the assembly opening 26th , which an axial insertion of the (second) pendulum roller 18th for positioning in the (second) receiving opening 6th enables. The assembly opening 26th is here by means of a securing element 28 (optionally completely) filled. The security element 28 is here (optional) from a first filling element 64 an (optional) first friction element 29 and a second filler element 65 an (optional) second friction element 30th formed (compare 7th ). Before the fuse element 28 in the assembly opening 26th is formed or inserted, is one of the mounting opening 26th together with the (second) receiving opening 6th an opening is formed which (preferably just flat) is large enough so that the first or the second axial locking shoulder 22nd , 23 (preferably both) with its heel outer contour 24 with the relatively large heel diameter 25th can be passed through.

The rear friction element 30th is in (optionally direct) frictional contact with the rear carrier disk 10 and the front friction element 29 is in (optionally indirect) frictional contact with the front carrier disk 9 . Between the front friction element 29 and the front carrier disk 9 an energy storage element is clamped, for example a disc spring 68 as in 2 shown. The friction elements 29 , 30th are with the pendulum mass 4th connected to a commuting, for example like from 6th and 7th visible (see description below).

In 5 the detail Z is shown enlarged as it is in 1 is marked. The first stop element to be seen here 53 is (optionally) designed as a ball with (optionally) elastomer-like properties and in a stop seat 62 in the pendulum mass 4th firmly positioned as pendulum, recorded. The same preferably applies to the second stop element 54 . Here is (optional) the (first) stop element 53 by a first holding element 55 and a second holding element 56 at least one friction element 29 , 30th (compare 7th ) positively received and so secure to the pendulum mass 4th positioned.

In 6th is a pendulum mass 4th shown in plan view, here the two separate receiving openings 5 , 6th are easy to see. In the receiving openings 5 , 6th is a pendulum roller conveyor 7th , 8th (radially inside) and radially opposite (optional) a safety track 31 (pars-pro-toto only in the first opening 5 marked) with the smallest possible (optional) constant safety distance 32 educated. The safety track 31 is from a mounting opening 26th interrupted, which is a recording contour 27 (pars-pro-toto only in the first opening 5 marked) precisely fitting for axial pushing through at least one of the two axial locking shoulders 22nd , 23 is set up. For clarity, there is a dashed line between the mounting opening 26th and the respective receiving opening 5 , 6th drawn.

• - zwei Noppenaufnahmen 67 für Befestigungsnoppen 66 (vergleiche 7) eines Reibelements 29,30, beispielsweise als axiale Durchgangslöcher; und/oder
• - zwei Anschlagaufnahmen 62 für jeweils ein Anschlagelement 53,54.

Optionally, the pendulum mass 4th continue to have the following characteristics:

• - two studded mounts 67 for fastening knobs 66 (compare 7th ) a friction element 29 , 30th , for example as axial through holes; and or
• - two stop holders 62 for one stop element each 53 , 54 .

In 7th is a front or rear friction element 29 , 30th shown, the friction elements 29 , 30th are preferably identical, for example for manufacturing as an injection molded part with a single matrix. One or two such friction elements 29 , 30th is / are, for example, in 2 and 4th to 5 inserted and with a pendulum mass 4th according to 6th compatible. It is further on 6th Reference is made when corresponding properties of the pendulum mass 4th to be named. The friction element shown 29 , 30th is optional (almost) full surface for the pendulum mass 4th executed and therefore has separate recesses 63 for the receiving openings 5 , 6th on. On the radially outer edge of the recesses 63 for the receiving openings 5 , 6th are a first filler element 64 or a second filling element 65 provided, which are set up to each have a corresponding assembly opening 26th to be reduced radially, preferably to be completely filled. The first filling element is optional here 64 with a plug element 69 and the second filler element 65 with a corresponding insertion opening 70 executed so that an (at least functionally) identical (second) friction element 30th above on the shown (first) friction element 29 can be fastened or at least relatively positionable.

• - Zum Befestigen an der Pendelmasse 4 sind (optional) in den radial äußeren Ecken axial hervorstehende Befestigungsnoppen 66 vorgesehen, welche jeweils in eine Noppenaufnahme 67 formschlüssig, stoffschlüssig und/oder kraftschlüssig einführbar, bevorzugt axial einschiebbar, sind.
• - Am radial inneren Rand des Reibelements 29,30 sind axial hervorstehende Halteelemente 55,56 jeweils paarweise vorgesehen, welche jeweils zum Halten eines Anschlagelements 53,54 eingerichtet sind (vergleiche 5).

Optionally, the friction element 29 , 30th continue to have the following characteristics:

• - To attach to the pendulum mass 4th are (optional) axially protruding fastening knobs in the radially outer corners 66 provided, which each in a studded receptacle 67 are positively, cohesively and / or non-positively insertable, preferably axially insertable.
• - At the radially inner edge of the friction element 29 , 30th are axially protruding retaining elements 55 , 56 each provided in pairs, each for holding a stop element 53 , 54 are set up (compare 5 ).

In 8th is purely schematically a friction clutch 35 with a clutch disc 34 shown in side view, with a first friction plate 40 (Pressure plate) and a second friction plate 41 (Counter plate) together with the friction carrier 36 (here with a friction lining on both sides) a friction package 39 form. The counter plate 41 forms the entry side here, for example 42 , via which (in a main state) a torque about the axis of rotation 2 is initiated, and is axially fixed rotatable for this purpose. The pressure plate 40 is rotatory to the counterplate 41 fixed (co-rotating) and axially displaceable so that the friction carrier 36 for the frictional transmission of torque between the friction plates 40 , 41 is axially compressible. The friction carrier 36 is via an (optional) Vibration damper 38 with a shaft connection 37 torque-proof connected, the shaft connection 37 here accordingly the starting page 43 forms for delivering a torque. Parallel to this is (indirectly or directly) on the shaft connection 37 by means of the first and / or second carrier disk 9 , 10 a centrifugal pendulum 1 arranged according to an embodiment according to the above description, so that an oscillation frequency of a predetermined order can be canceled.

In 9 is purely schematically a motor vehicle 48 with a drive train 3 shown in a plan view, with a drive machine in a transverse frontal arrangement 44 , for example an internal combustion engine, with its motor axis 58 transverse to the longitudinal axis 60 and in front of the driver's cab 59 of the motor vehicle 48 is arranged. The drive train 3 is set up to drive a transmission (shown here purely schematically) so that propulsion by means of the left propulsion wheel 46 and the right propulsion wheel 47 by means of a torque output from the prime mover 44 is made possible. The torque is transmitted by means of a friction clutch 35 , for example as in 8th shown interruptible, which between the machine shaft 45 and the transmission input shaft 57 of the transmission is arranged.

With the centrifugal pendulum proposed here, simple assembly with a compact design based on the desired specific weight of the pendulum mass can be achieved.

List of reference symbols

1

Centrifugal pendulum

2

Axis of rotation

3

Powertrain

4th

Pendulum mass

5

first receiving opening

6

second receiving opening

7th

first spherical roller conveyor

8th

second roller conveyor

9

front carrier disk

10

rear carrier disk

11

first front carrier roller conveyor

12

second front carrier roller conveyor

13

first rear carrier roller conveyor

14th

second rear carrier roller conveyor

15th

first lane pairing

16

second track pairing

17th

first pendulum roller

18th

second pendulum roller

19th

Roller axis

20th

Pendulum roller diameter

21st

Overlap section

22nd

front axial securing shoulder

23

rear axial locking shoulder

24

Paragraph outer contour

25th

Heel diameter

26th

Assembly opening

27

Receiving contour

28

Fuse element

29

front friction element

30th

rear friction element

31

Safety track

32

Safety distance

33

Circumferential direction

34

Clutch disc

35

Friction clutch

36

Friction carrier

37

Shaft connection

38

Vibration damper

39

Friction package

40

Pressure plate

41

Counter plate

42

Entry page

43

Exit page

44

Prime mover

45

Machine shaft

46

left propulsion wheel

47

right propulsion wheel

48

Motor vehicle

49

front outer section

50

rear outer section

51

front carrier roll diameter

52

rear carrier roll diameter

53

first stop element

54

second stop element

55

first holding element

56

second holding element

57

Transmission input shaft

58

Motor axis

59

Driver's cab

60

Longitudinal axis

61

Stop bolt

62

Stop mount

63

Recess for receiving opening

64

first filling element

65

second filling element

66

Fastening knobs

67

Nub mount

68

Disc spring

69

Plug-in element

70

Insertion opening

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102017104968 A1 [0002]
• DE 102015216742 A1 [0002, 0003]
• DE 102016200129 A1 [0003]

Claims (10)

Centrifugal pendulum (1) with a rotation axis (2) for a drive train (3), having at least the following components: - at least one pendulum mass (4) with a plurality of separate receiving openings (5, 6) each with a pendulum roller track (7, 8); - A front carrier disk (9) with a plurality of front carrier roller tracks (11, 12) corresponding to one of the pendulum roller tracks (7, 8); - A rear carrier disc (10) with a plurality of rear carrier roller tracks (13,14) corresponding to one of the pendulum roller tracks (7,8), the at least one pendulum mass (4) being arranged axially between the two carrier discs (9,10) and in each case one of the pendulum roller tracks (7, 8) forms a track pairing (15, 16) with the respective corresponding front carrier roller track (11, 12) and rear carrier roller track (13, 14); and - a plurality of pendulum rollers (17,18) each with a roller axis (19) which is assigned to one of the track pairings (15,16), the at least one pendulum mass (4) on the carrier disks (9,10) by means of the Pendulum rollers (17,18) is mounted, in at least one of the track pairings (15,16): - the respective pendulum roller (17,18) has a pendulum roller diameter (20) in an overlapping section (21) in axial overlap with the pendulum mass (4) and a front axial securing shoulder (22) and a rear axial securing shoulder (23), the axial securing shoulders (22, 23) each being set up for axially spacing the pendulum mass (4) from a corresponding carrier disk (9, 10), wherein the axial securing shoulders (22 23) each have a shoulder outer contour (24) with a shoulder diameter (25), the shoulder diameter (25) being greater than the pendulum roller diameter (20); and - the respective receiving opening (5,6) has an assembly opening (26), at least one of the axial securing shoulders (22,23) being able to be axially passed through the assembly opening (26) only, characterized in that the assembly opening (26) is one to the The outer contour of the shoulder (24) of the axial securing shoulder (22, 23) has a corresponding receiving contour (27). Centrifugal pendulum (1) with a rotation axis (2) for a drive train (3), having at least the following components: - at least one pendulum mass (4) with a plurality of separate receiving openings (5, 6) each with a pendulum roller track (7, 8); - A front carrier disk (9) with a plurality of front carrier roller tracks (11, 12) corresponding to one of the pendulum roller tracks (7, 8); - A rear carrier disc (10) with a plurality of rear carrier roller tracks (13,14) corresponding to one of the pendulum roller tracks (7,8), the at least one pendulum mass (4) being arranged axially between the two carrier discs (9,10) and in each case one of the pendulum roller tracks (7, 8) forms a track pairing (15, 16) with the respective corresponding front carrier roller track (11, 12) and rear carrier roller track (13, 14); and - a plurality of pendulum rollers (17,18) each with a roller axis (19) which is assigned to one of the track pairings (15,16), the at least one pendulum mass (4) on the carrier disks (9,10) by means of the Pendulum rollers (17,18) is mounted, in at least one of the track pairings (15,16): - the respective pendulum roller (17,18) has a pendulum roller diameter (20) in an overlapping section (21) in axial overlap with the pendulum mass (4) and a front axial securing shoulder (22) and a rear axial securing shoulder (23), the axial securing shoulders (22, 23) each being set up for axially spacing the pendulum mass (4) from a corresponding carrier disk (9, 10), wherein the axial securing shoulders (22 23) each have a shoulder outer contour (24) with a shoulder diameter (25), the shoulder diameter (25) being greater than the pendulum roller diameter (20); and - the respective receiving opening (5,6) has an assembly opening (26), at least one of the axial securing shoulders (22,23) being able to be axially passed through the assembly opening (26), characterized in that the assembly opening (26) is separated from a separate Securing element (28) is reduced radially in relation to the roller axis (19) of the pendulum roller (17,18) in such a way that the pendulum roller (17,18) is axially secured in the receiving opening (5,6). Centrifugal pendulum (1) after Claim 1 and 2 , wherein the securing element (28) preferably completely fills the receiving contour (27). Centrifugal pendulum (1) according to one of the preceding claims, wherein the pendulum mass (4) comprises at least one friction element (29,30) for frictional engagement with one of the carrier disks (9,10), the friction element (29,30) preferably by means of the securing element (28) according to Claim 2 or 3 is attached to the pendulum mass (4). Centrifugal pendulum (1) according to one of the preceding claims, wherein the receiving openings (5,6) with the assembly opening (26) has a securing track (31) radially opposite the respective pendulum roller track (7,8), the securing track (31) being at a securing distance (32) to the pendulum roller track (7,8) is spaced, the securing distance (32) outside the mounting opening (26) is constant. Centrifugal pendulum (1) according to one of the preceding claims, wherein the assembly opening (26) is arranged centrally in the circumferential direction (33) relative to the pendulum roller track (7, 8). Clutch disc (34) for a friction clutch (35), having at least the following components: - A friction carrier (36) for frictional torque transmission; - A shaft connection (37) for torque transmission, the friction carrier (36) and the shaft connection (37) being connected to one another in a torque-proof manner; and - A centrifugal pendulum (1) according to one of the preceding claims, wherein the clutch disc (34) preferably further comprises a vibration damper (38). Friction clutch (35) for a drive train (3), having at least the following components: at least one axially compressible friction package (39) comprising at least one friction plate (40, 41) and at least one clutch disc (34) Claim 7 , via which a torque can be transmitted in the compressed state; - An input side (42) for receiving a torque; and - an output side (43) for outputting a torque, the input side (42) being connected to the output side (43) in a torque-transmitting manner solely by means of the friction pack (39), the output side (43) preferably being connected to the shaft connection (37) of the clutch disc (34) is formed. Drive train (3) having at least the following components: - a drive machine (44) with a machine shaft (45); - At least one consumer (46, 47); and - a friction clutch (35) after Claim 8 , the machine shaft (45) being releasably connected to the at least one consumer (46, 47) in a torque-transmitting manner by means of the friction clutch (35). Motor vehicle (48), having at least one drive wheel (46, 47) for propelling the motor vehicle (48), which by means of a drive train (3) Claim 9 is drivable.

Images